Variables and Graphing Review

What kind of information usually goes on the X axis of a graph?

• Dependent Variable

• Independent Variable

• Constant Variable

• Random Variable

What type of graph is used to show a positive correlation in data?

• Bar Chart

• Line Graph

• Scatterplot - positive

• Pie Chart

What is the purpose of a graph in scientific research?

• To visually represent data and identify trends.

• To provide a detailed written explanation of results.

• To summarize findings in a single sentence.

• To replace the need for statistical analysis.

What is a histogram used for?

• To show the distribution of numerical data.

• To display categorical data in bars.

• To represent data over time in a line graph.

• To summarize data with a single average value.

What is the difference between independent and dependent variables?

• Independent variables are measured, while dependent variables are manipulated.

• Independent variables are controlled, while dependent variables are observed.

• Independent variables are manipulated, while dependent variables are measured.

• Independent variables are irrelevant, while dependent variables are essential.

What does a scatterplot display?

• The relationship between two quantitative variables.

• The distribution of a single variable.

• The frequency of categorical data.

• The trend of a variable over time.

In which section of the scientific method does the graph go?

• Formulate a hypothesis.

• Record and organize results.

• Conduct an experiment.

• Analyze the literature.

What is the name of the horizontal (left to right) axis of the graph?

• Y axis

• Z axis

• X axis

• T axis

What is a dependent variable?

• The variable that is manipulated in an experiment.

• The variable that is measured in an experiment.

• The variable that remains constant throughout the experiment.

• The variable that is used to control the experiment.

What is a trend line?

• A line that shows the general direction of data points in a scatterplot.

• A line that connects the highest points in a graph.

• A line that represents the average of all data points.

• A line that indicates the minimum value in a dataset.